To view this video, SERIES PARALLEL CIRCUITS, click on the link below https://www.youtube.com/watch?v=TtA94FEFIRM This video continues our look at Ohm’s Law, and is about improving your understanding of it for electro-technical exams and for everyday workplace use. Electro-technical exams will always include questions on Ohm’s law, and you will be expected to make basic calculations…
VIDEO 186 – OVERCURRENT DIFFERENCES – OVERLOAD – SHORT CIRCUIT – EARTH FAULT – WHAT ARE THEY AND HOW DO THEY WORK?
To view this video, OVERCURRENT DIFFERENCES, click on the link below https://www.youtube.com/watch?v=A9Zze4uNgRw What is an overcurrent? What do we actually mean when we talk about overcurrents? New starters in the trade, and even the occasional more experienced electrician, will get confused by the different terms and it is important that we use the correct terminology…
VIDEO 185 – SPD – SURGE PROTECTIVE DEVICES – WHAT ARE THEY – PROTECTIVE DEVICES PART 3 – HOW THEY WORK – WHAT THEY DO
To view this video, SPD – SURGE PROTECTIVE DEVICES, click on the link below https://www.youtube.com/watch?v=CCZJ0CPOR2U This is part 3 of our mini series on protective devices. There are many protective devices available, and they tend to fall into very different protection style groups. Each group performing its own specialised functions. SPDs or surge protective devices…
VIDEO 184 – BOND YES OR BOND NO – DO I BOND THAT OIL TANK – OR THAT WATER PIPE – AN EASY CALCULATION FOR SAFETY
To view this video, BOND YES OR BOND NO, click on the link below https://www.youtube.com/watch?v=nLl1qgyB7Mk In this LearnElectrics video we will take a simplified look at what we can do when we need to make a decision about equipotential bonding of conductive parts that are not part of the electrical installation. This is an important…
VIDEO 183 – 110 VOLT YELLOW TRANSFORMERS – PLUGS AND SOCKETS – HOW TO WIRE THEM – HOW THEY WORK
To view this video, 110V YELLOW TRANSFORMERS, click on the link below https://www.youtube.com/watch?v=-tjRiVb1e5Q In this LearnElectrics video we will look at 110 volt plugs and sockets and how we should wire them up. We will also look at the yellow 110 volt transformers that are common on most work sites across the UK, and beyond,…
VIDEO 182 – SUPPLEMENTARY AND MAIN BONDING DIFFERENCES – HOW DO THEY WORK & KEEP US SAFE?
To view this video, EARTHING & BONDING, click on the link below https://www.youtube.com/watch?v=Fdqb2CEOENw We are frequently asked about bonding and earthing and about supplementary bonding, so in this LearnElectrics video we will look at this important safety subject. The sort of questions we are asked might include … What is the difference between Earthing and…
VIDEO 181 – ELECTRICAL SAFE ZONES – PRESCRIBED ZONES – WHY HAVE THEM – HOW TO WORK OUT WHERE THEY ARE AND BE SAFE
To view this video, ELECTRICAL SAFE ZONES – PRESCRIBED ZONES, click on the link below https://www.youtube.com/watch?v=lThW98NtKV8 In this video we will talk about electrical safe zones or prescribed zones as they are called now. What they are and how can we identify them so that we don’t drill or nail through any hidden cables. The…
VIDEO 180 – INSPECTION AND TEST PRACTICAL ASSESSMENT – WHAT TO EXPECT IN AN I&T ASSESSMENT – HOW TO BE SUCCESSFUL
To view this video, INSPECTION AND TEST PRACTICAL ASSESSMENT, click on the link below https://www.youtube.com/watch?v=nZF0UXh7GT0 In this LearnElectrics video we will look at what you will be expected to do when undertaking an Electrical Inspection and Test practical assessment and what you can do to prepare yourself for it, and improve your prospects of passing…
VIDEO 179 – SOCKET TESTING WITH A 3 WAY TEST LEAD
To view this video, SOCKET TESTING WITH A 3 WAY TEST LEAD, click on the link below https://www.youtube.com/watch?v=yQwLZdjPel4 In this LearnElectrics video we will look at using the three-way test lead that comes with most multifunction testers. Over the years we have had many new starters in the trade, and apprentices, that have asked the…
VIDEO 178 – AFDD – PROTECTIVE DEVICES – PART 2 – ARC FAULT DETECTION DEVICES – HOW DO THEY PROTECT A CIRCUIT
To view this video, AFDD – PROTECTIVE DEVICES, click on the link below https://www.youtube.com/watch?v=vwB21r66faM This is part 2 of our mini-series on protective devices and this video is about AFDDs or Arc Fault Detection Devices. New regulations that have been introduced into the Wiring Regulations mean that certain buildings and properties must now have AFDD…